Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W4CMC callsign genealogy
Currently held by WILLIAMS, ESTLE A
The FCC publishes a previous_call_sign on
every amateur license — a self-link to the licensee's prior callsign.
Following those links produces the chain below.
Previous callsigns
Older callsigns held by W4CMC's current licensee, walking backwards.
- YELTON, JAMES AFLgranted 2007-05-17cancelled 2014-09-27
Successor callsigns
Callsigns held now by people who previously held W4CMC.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W4CMC, oldest first.
- WILLIAMS, ESTLE A AL1999-10-26 → cancelled 2011-10-27
- YELTON, JAMES A FL2014-09-27 active